Virtual ports devices and method

ABSTRACT

A device auxiliary to surgery, for anchoring and lifting cavity walls or internal organs of a patient. The device provides a virtual port; that is an instrument that can be non-invasively, or minimally invasively and removably attached to the undersurface of a patient&#39;s cavity, or to various tissues within a cavity, and to which various retracting means are attached. The device includes means allowing it to be moved from one position to another and reattached to the undersurface of the abdominal wall, or to various tissues within a cavity, without creating any additional openings in the cavity wall. The device includes means for attaching various retractors.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation under 35 U.S.C. 120 of U.S. patentapplication Ser. No. 10/563,229, Jan. 3, 2006 now U.S. Pat. No.8,038,612 which is a U.S. National Phase Application under 35 U.S.C. 371of PCT International Application No. PCT/IL2004/000593, which has aninternational filing date of Jul. 2, 2004, and which claims prioritybenefit from UK Patent Application No. 0315479.6, filed Jul. 2, 2003,and UK Patent Application No. 0324830.9, filed Oct. 24, 2003,incorporated herein by reference in their entirety.

FIELD OF THE INVENTION

This invention concerns devices auxiliary to surgery.

The invention relates in particular to such devices for anchoring andlifting cavity walls or internal organs of a patient and for holdingsurgical instruments.

BACKGROUND OF THE INVENTION

This invention relates to anchoring devices for retractors and/or forlifting the cavity walls, being attached to the internal surface of acavity or to various organs within a cavity, during minimally invasivesurgery.

More specifically, the invention relates to minimally invasive orpreferentially non-invasive anchoring system and devices for attachmentto the internal walls of the cavity, or on the organs within a cavity inwhich the intervention is performed, at another location than theorifice through which they were originally introduced.

Preferably, the device can be moved and re-attached, one or more times,non-invasively or minimally invasively, to other locations in theinterior of the cavity. Such devices are denoted throughout the patentapplication as virtual ports. The purpose of such virtual port devicesis to supply an anchoring device for retracting various tissue andorgans by self-retained retractor means, or to supply an anchoringdevice for instruments which are attached to these virtual port devices.

This anchoring permits instruments within the cavity to be moved in anypossible direction and at any angle. Such devices may compriseattachment of the device on the underside of the cavity, or on internalorgans and tissues, by magnetic attachment means, suction attachment,adhesive attachment, mechanical attachment by small barbs, or clips,other minimally invasive means such as wires introduced through theentire thickness of the cavity wall and attached to the anchoring deviceon the internal side of the cavity, any combination of these modalities,or other non-invasive or minimally invasive anchoring means that mightbe envisioned for those accustomed to the art.

Additionally, in case the anchoring device is held in place by a devicesituated on the on exterior surface of a cavity such as the abdomen,these devices may serve also for lifting the cavity wall and permitperformance of atmospheric pressure laparoscopy. The devices on theouter surface of the cavity can be attached to a frame or to rods fixedto the operating table, to the operating room floor or ceiling and servefor lifting the cavity wall, permitting to perform the interventionwithout the necessity to insufflate the cavity with gas.

Gas insufflation has its potential drawbacks such as generation ofpositive pressure, which in case of abdominal laparoscopy can bedetrimental in obese patients, patients with chronic respiratory and/orcardiac diseases.

Additionally gas insufflation, necessitates an insufflator device, canresult in rapid loss of the working cavity when there is a gas leak, orwhen the gas exhaust results in inadequate view of the surgical site.

Laparoscopic interventions represent a significant advance in variousfields of surgery permitting the performance of the majority ofinterventions through a number of small incisions reducing postoperativepain and enhancing the postoperative recovery. However there are still asignificant number of drawbacks to this technique. The fixed position ofthe access openings in the wall of the cavity—access ports—significantlylimits the approach to some surgical locations making some interventionsvery long and technically demanding. Creation of additional ports maynegate the minimal invasive nature of the procedure. Some ports are usedmainly for introducing retracting instruments in order to facilitatedissection.

The fixed position of the ports may hinder retraction in variousdirections, and the limited potential access sites (as for exampleanterior and lateral walls, but not posterior, proximal and distal wallsof the abdomen for abdominal laparoscopy) may make retraction in somedirections impossible.

Magnetic attraction has been used in medicine to remotely attach devicesto tissue, or to remotely manipulate tissue. So, in U.S. Pat. No.6,358,196, issued to RAYMAN REIZA magnetic substances are introducedinto the intestine by ingestion and the intestines are remotelymanipulated by an electromagnet during laparoscopic surgery. Howeverthis device does not permit retraction of an abdominal organ other thanintestine and does not permit precise retraction of a particular segmentof intestine.

In patents US2003009080, U.S. Pat. No. 6,494,211, a suction device isused to attach a retractor to various organs such as the heart in orderto retract it in a specific direction. However these devices areintroduced trough orifices in the body wall and they are not virtualports since they can not permit non invasive anchoring of the retractorto the undersurface of the cavity wall, or within the cavity in anotherlocation than the access port.

In patents WO03013366, U.S. Pat. No. 6,206,827 a retractor device isattached to the organ to be retracted by some adhesive. However, theretractors are introduced through an orifice and do not represent avirtual port since they can not permit non invasive anchoring of theretractor to the undersurface of the cavity wall, or within the cavityin another location than the access port.

In U.S. Pat. No. 6,206,827, a retractor is directly attached to tissueby penetrating it with mechanical sharp means such as barbs or springsand traction on this means cause tissue retraction. However, theretractors are introduced through an orifice and do not represent avirtual port since they can not permit non invasive anchoring of theretractor to the undersurface of the cavity wall, or within the cavityin another location than the access port.

In patents EP1287786, U.S. Pat. No. 5,690,607 abdominal wall retractorsthat may be used for gasless laparoscopy are described. However, thesedevices can be used only for lifting the body wall and cannot be used,neither for anchoring endoscopic graspers, necessary for retractingintra-abdominal tissues and organs, nor for anchoring instruments atvarious position on the undersurface of the abdominal cavity.Additionally, when using rods for retraction, a few mm orifices areperformed in the body wall.

There is a need for an anchoring device that is non invasively andremovably attached to the undersurface of a cavity, or to varioustissues within a cavity, or to tissues within a cavity, during minimallyinvasive surgery acting as an anchoring device for a retractor.

There is a need for an anchoring device, to which various retractors areattached, that is non invasively and removably attached to the interiorsurface of a cavity, or to various tissues within a cavity, and that canbe moved to any other position easily.

There is a need for such an anchoring device that is non-invasively andremovably attached to the interior surface of a cavity by magneticattraction using a magnet or electromagnet on the exterior surface ofthe cavity.

There is a need for an anchoring device that is non-invasively andremovably attached to the interior surface of a cavity, or to varioustissues within a cavity, by using suction.

There is a need for an anchoring device that is non-invasively andremovably attached to the interior surface of a cavity, or to varioustissues within a cavity, by using suction in which the suction isapplied continuously or in which the suction tube is detachable.

There is a need for an anchoring device that is non-invasive andremovably attached to the interior surface of a cavity, or to varioustissues within a cavity, by using a pressure sensitive gel or otherreversible adhesive means.

There is a need for an anchoring device that is minimally invasive andremovably attached to the interior surface of a cavity, or to varioustissues within a cavity, using mechanical means such as barbs, orfixation wires.

There is a need for an anchoring device that is non-invasively orminimally invasively and removably attached to the interior surface of acavity, that can permit lifting the cavity wall for performing gaslesslaparoscopy There is a need for an anchoring device that isnon-invasively and removably attached to the interior surface of acavity, or to various tissues within a cavity, using any combination ofthe above means.

Applicant believes these needs are not answered in prior art, as well asother problems which will become apparent upon reading the presentdisclosure.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a new surgery deviceincluding means for anchoring and lifting cavity walls or internalorgans of a patient.

The device provides a virtual port, that is, an instrument that can benon-invasively, or minimally invasively and removably attached to theundersurface of a patient's cavity, or to various tissues within acavity, and to which various retracting means or instruments areattached.

The device includes means allowing it to be moved from one position toanother and reattached to the undersurface of the abdominal wall, or tovarious tissues within a cavity, without creating any additionalopenings in the cavity wall.

The device includes means for attaching various retractors, etc.

In a preferred embodiment, the device uses a pair of solid magnets, withan inner and an outer part.

The retractor means may comprise a self retaining clamp or othermechanical attachment means, a vacuum activated attachment means, aadhesive attachment means such as a pressure adhesive gel or acombination thereof.

In another embodiment, the virtual port device comprises an inflatablechamber, which can be filled with a magnetisable gel or emulsion, or bymagnetisable particles.

In yet another preferred embodiment, the virtual port device is providedwith a suction device that allows attaching the device to the interiorsurface of the cavity or to various tissues within a cavity.

In another preferred embodiment, the virtual port device comprises asuction cup with an elastic membrane, which is coated on its tissuefacing surface with a pressure sensitive adhesive gel that permit betterattachment to the cavity wall, or to various tissues within a cavity.

In another preferred embodiment, the virtual port anchoring device isattached to the inner side of the cavity by small barbs that penetratethe tissue when the device is pressed by the introducer against it.

In another preferred embodiment, the virtual port anchoring device isattached to the inner side of the cavity by wires that penetrate andpierce the cavity wall. Preferably, the attachment device is shaped asan umbrella that opens on the undersurface of the cavity and is held inthis position by and prevented from flipping back on itself by somereinforcing means.

In another preferred embodiment, the virtual port anchoring device isattached to the inner side of the cavity by a self-retaining clamp.

The embodiments in which the anchoring means are held in place by somedevice on the outer surface of the cavity, such as by magneticattraction or by wires piercing the entire thickness of the cavity, canserve also for gasless (atmospheric pressure) endoscopy or laparoscopy.

The anchoring device may serve also for anchoring and as a hinge forinstruments, etc.

The surgeon may use one hole in the abdomen for inserting surgicalinstruments, and a plurality of anchoring sites having a minimaldiameter, for holding and manipulating these instruments.

Further objects, advantages and other features of the present inventionwill become obvious to those skilled in the art upon reading thedisclosure set forth hereinafter.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be described by way of example and with referenceto the accompanying drawings in which:

FIG. 1 virtual anchoring point device with internal magnet

FIG. 2 details the internal magnet

FIG. 3 details a virtual port using a vacuum cup with vacuum tube

FIG. 4 details a virtual port using a vacuum cup with detachable canula

FIG. 5 details a virtual port using a vacuum cup with canula and vacuumreservoir

FIG. 6 details a vacuum/magnetic cup with canula

FIG. 7 details a virtual port including a wire with a reversedumbrella-shaped device before being attached into place

FIG. 8 details a virtual port use of a wire with a reversedumbrella-shaped device attached into place

FIG. 9 details an inner body with fluid magnetic filling

FIG. 10 details a virtual port self retaining clips

FIG. 11 details the structure of a virtual port self retaining clips

FIG. 12 details another embodiment of a virtual port self retainingclips

FIG. 13 details a virtual port self retaining clips with a vacuumcup/grasping means

FIG. 14 details a net for holding internal organs or pushing them aside

FIG. 15 details means for holding an internal organ by attaching it to avirtual port

FIG. 16 details a balloon with affixed virtual port devices

FIG. 17 details vacuum cup with a two-state valve in its Closed state

FIG. 18 details vacuum cup with a two-state valve in its Open state

FIG. 19 illustrates a plurality of vacuum cups connected to a commonvacuum pump

FIG. 20 details vacuum cup with a two-state, toggle-switch activatedvalve in the Vacuum Activate state

FIG. 21 details vacuum cup with a two-state valve in the Vacuum Preservestate

FIG. 22 details vacuum cup with a three-state, switch-activated valve inthe Vacuum Activate state

FIG. 23 details vacuum cup with a three-state, switch activated valve inthe Vacuum Preserve state

FIG. 24 details vacuum cup with a three-state, switch activated valve inthe Vacuum Release state

FIG. 25 illustrates an electronically-controlled vacuum pump 7

FIG. 26 illustrates a cup-moving means with partial vacuum reduction

FIG. 27 illustrates another cup-moving means with partial vacuumreduction

FIG. 28 illustrates the structure of a reinforced vacuum cup

FIG. 29 illustrates the use of virtual ports

FIG. 30A details the insertion of a hollow needle through the cavity orabdominal wall

FIG. 30B details the insertion of a surgical device

FIG. 30C details the attachment of a surgical device to the virtualport.

FIG. 31 details a rod for manipulating surgical tools.

FIG. 32 details a motorized/manual surgery support system.

FIG. 33 details a fully motorized surgery support system

FIG. 34 details a fully motorized surgery support system using a remotecontrol unit.

FIG. 35 details a surgery support system for concurrent operation at twosites within the patient's body.

DETAILED DESCRIPTION THE INVENTION

A preferred embodiment of the present invention will now be described byway of example and with reference to the accompanying drawings.

The device of the present invention provides a virtual port, that is, aninstrument that can be non-invasively and removably attached to theundersurface of a patient's cavity, or to various tissues within acavity, and to which various retracting means are attached.

The device is initially introduced through an opening in the cavity walland then attached to some location on the undersurface of the cavitywall, or to various tissues within a cavity, by some non-invasiveattachment means.

FIG. 1 illustrates a virtual anchoring point device with internalmagnet, to attach to an abdominal wall 11 of the abdominal cavity 12,inside the human body. There is an outer magnet or electromagnet 31,connected to holding/moving means 32, such as an articulate arm or robotarm or manual holding handle. The outer magnet can be secured to theceiling or a wall or another fixed spot. The system also includes aninner magnet 21, or body having ferromagnetic properties. A terminalloop or protuberance 22, at one or both ends of the elongated body ofmagnet 21, is used to pull it in or out of the human body.

The device also includes a ratchet mechanism 23, which holds the string24 after it is pulled in the direction shown with arrow 41, then theclips 25 attached to the other side of wire 24, pulls the internal organ13 to which it is attached.

A lever 26 when activated, releases the ratchet mechanism 23, so thatthe tension in wire 24 is released, to stop pulling the internal organ13

Dual use of device:

1. to hold open the internal body cavity 12, such as the abdominalcavity by applying a force outwards, generally in the direction of arrow42. The body cavity can thus be kept open, filled with gas at aboutatmospheric pressure—no higher pressure is required.

2. to act as virtual anchor point to pull internal organs 13 towards it.one or more organs can be pulled towards the anchor point The innermagnet 21 can be moved to another location by moving the outer magnet 31laterally, as indicated with the arrow 43. The device can be moved fromone position to another and reattached to the undersurface of theabdominal wall, or to various tissues within a cavity, without creatingany additional openings in the cavity wall.

In a preferred embodiment, the device includes a solid magnet that canbe introduced through an opening in a cavity wall such as the abdominalwall.

The device shape is spherical or elongated and enough magnetisablesubstance is incorporated to permit effective attraction by a magnet onthe exterior surface of the cavity. The device is smoothed, or coatedwith a smooth coating permitting it to slide easily on the undersurfaceof the cavity.

To the virtual port device may be attached, through a string, a tissueattachment means. This system will cause retraction by pulling towardthe anchoring means. Alternatively, instead of a string, a rod may beattached to the anchoring means, serving to push away the tissue fromthe anchoring device.

The device is preferably polished, processed to achieve a smooth outersurface, or coated with a smooth coating permitting it to slide easilyon the undersurface of the cavity, or on various tissues within acavity.

To the virtual port device is attached, through a string, a tissuegrasping means. The attachment means may represent a self retainingclamp, grasper, or other mechanical attachment means, a vacuum activatedattachment means, an adhesive attachment means such as a pressureadhesive gel or a combination thereof. This system will cause retractionby pulling toward the anchoring means.

Alternatively, instead of a string, a rod may be attached to theanchoring means serving to push away the tissue from the anchoringdevice. Also, a combination of pulling and pushing retractor means maybe used.

The grasping means of the tissue retractor may include a self-retainingclamp or other mechanical attachment means, a vacuum activatedattachment means, a adhesive attachment means such as a pressureadhesive gel or a combination thereof.

Additionally, the grasping means may be directly to the tissue to beretracted, or to a net, to an elastic sheet, a balloon device, or anycombination thereof of such devices, which serve for tissue or organretraction.

The string that connects the attachment means to the device may be anelastic string, or an adjustable length string, whose length can beadjusted by pulling it through a self locking ratchet mechanism, with ameans for manual or remote release of the string tension, or using othermechanisms such as springs, that may be envisioned by those accustomedto the art.

Also, strings of various lengths and various tensile strengths andelasticity may be removably attached to the virtual port device using aninterlocking or other simple attachment means.

The magnet on the undersurface of the cavity is maintained attached tothe abdominal wall by using a magnet or electromagnet on the exteriorsurface of the cavity. Using a strong enough magnetic field, enoughattraction force can be applied to the undersurface magnet, which is ata distance of a few cm or more from the upper surface magnet, andpermitting it to hold weight of a few hundred grams, as necessary fortissue and organ retraction. The undersurface magnet, included in thevirtual port device, may be advanced to a new position by moving themagnet on the exterior surface of the cavity.

When large electromagnets are needed these may be held above the patientby an articulated arm that may be manipulated manually or by specificengines to the desired position.

FIG. 2 details the internal magnet 21, having an elongated shape,preferably cylindrical with rounded ends 211,212 for easy insertion intothe body and extraction therefrom.

In another embodiment, the virtual port device comprises an inflatablechamber, which can be filled with a magnetisable gel or emulsion, or bymagnetisable particles. This device can be introduced in a deflatedsituation through a slender port and inflated by a liquid or semi-liquidsubstance to a larger volume permitting better attraction by themagnetic field. The inflatable chamber can be connected to an inflatingtube continuously or it can be detachably connected to such a tube inwhich case, one or more one-way valve are provided to prevent spillage.

Such valve means may be provided with a flexible and broad connectionmeans that permit reattachment of the tube at various angles.

The device may be spherical, in which case a single connection meanssituated on the side opposite to the attachment side to the cavity wall.

The device may be spherical in which case a single connection meanssituated on the side opposite to the attachment side to the cavity wall.

Alternatively, the device may be elongated, in which case more than oneconnections means and one-way valves may be necessary to be able toreattach the tube to the device from various angles and positions.

FIG. 9 details an inner body 58 which can be filled with a fluidmagnetic filling through a tube 582 and valve 581. It is then attractedto an outer magnet or electromagnet 31.

The fluid ferromagnetic material may include, for example: small ironspheres in a gel mixture, or iron powder in oil.

In another preferred embodiment the virtual port device is provided witha suction device that permits attachment of the device to the interiorsurface of the cavity or to various tissues within a cavity. In thiscase the exterior wall of the device is shaped preferentially as a cupthat is preferentially of reduced elasticity, that permit the device tobe introduced through a small orifice but does not allow it tocompletely collapse when applying vacuum for suction attachment to thetissue. In some embodiments the cup is reinforced with radial ribs toprevent its collapse.

However, the device may be rigid, or elastic. The interior surface isprovided with an elastic and impermeable membrane that is sucked in whenapplying vacuum to the inside of the suction device. The suction cup isprovided at its periphery with a sealing rim, shaped as a flange andmanufactured from a foamy plastic material or similar material thatpermits effective sealing and prevent loss of vacuum. Between themembrane and the interior surface of the cup a chamber is created.

Additionally, the elastic membrane may be provided with one or moreorifices that permit better suction and attachment. Alternatively, thesuction cup may be applied directly to the tissue without an interveningmembrane.

In some embodiments an absorbent material is provided inside the suctioncup to prevent pooling of liquid, between the suction device and tissueand detachment of the suction device.

The grasping means may be directly to the tissue to be retracted, or toa net, or to an elastic sheet, rod, balloon device, or to anycombination thereof, which serve for tissue or organ retraction. Thestring that connect the attachment means to the device may be an elasticstring, or an adjustable length string, whose length can be adjusted bypulling it through a self locking ratchet mechanism, with a means formanual or remote release of the string tension, or using othermechanisms such as springs, that may be envisioned by those accustomedto the art. Also, strings of various lengths and various tensilestrengths and elasticity may be removably attached to the virtual portdevice using an interlocking or other simple attachment means.

Alternatively, the device may be elongated, in which case more than oneconnections means and one-way valves may be necessary to be able toreattach the tube to the device from various angles and positions. Theconnector used for attaching the canula may be of a mechanicalarticulation type for example a bayonet connection, or by using aninflatable balloon at the end of the canula to firmly attach it to aproper cavity on the anchoring device.

FIG. 3 details a virtual port using a vacuum cup with vacuum tube, toattach to the abdominal wall 11. In the abdominal cavity 12—inside thehuman body—is inserted a vacuum cup 51, which is flexible/collapsibleand connected to vacuum tube 52. The string 24, after being pulled inthe direction shown, will pull an internal organ.

A ratchet mechanism 23 holds the tension in the string. A clips 25attached to the other side of string 24, connects to an internal organas desired.

FIG. 4 details a virtual port using a vacuum cup with detachable canula,to attach to the abdominal wall 11. The device has a vacuum cup 51,coupled with a vacuum canula 53 through a cup receptacle 512, whichreceives the canula 53.

In a preferred embodiment the vacuum device is provided with a vacuumaccumulator or reservoir, represented by a non collapsible chamberconnected to the cup by a one directional valve, that may prevent vacuumlose during the time that the cup is applied to the undersurface of thecavity. The exterior wall of the suction device is connected through aslender tube to a vacuum source, this connection may be fixed ordetachable; in the latter case, one or more one-way valves are providedto prevent vacuum loss when in detached state. Such valve means may beprovided with a flexible and broad connection means that permitreattachment of the tube at various angles. The connector used forattaching the canula may be of a mechanical articulation type forexample a bayonet connection, or by using an inflatable balloon at theend of the canula to firmly attach it to a proper cavity on theanchoring device.

FIG. 5 details a virtual port using a vacuum cup with canula and vacuumreservoir, including a vacuum cup 51, a vacuum canula 53 with vacuumreservoir 54 with valve to cup 51. If gas enters the cup 51 to lower thevacuum level in cup 51, the reservoir 54 will help maintain the vacuumin the cup 51.

A cup receptacle 512, receives the canula 53 with optionally inflatingballoon 532 to hold it there during the vacuum process alternately, thecanula can connect to the reservoir 54, to create a higher level ofvacuum there—about 0.1 atmosphere, only part of it being created in thevacuum cup 51 (about 0.3-0.5 atmospheres) so as not to damage tissue.

In another embodiment, the virtual port device is removably attached tothe interior surface of the working cavity, or to tissue within theworking cavity, by adhesive means such as but not limited to a pressuresensitive gel.

Attachment to the interior surface of the cavity, or to tissue withinthe working cavity, may be obtained by any combination of the abovementioned means. In a preferred embodiment, the virtual port devicecomprises a magnet means and suction means. This combination permitsusing a less bulky magnet mainly for moving the virtual port from oneposition to another.

During changing the position, the vacuum is reduced and theelectromagnet is moved on the upper surface of the cavity to the newlocation dragging the virtual port device to its new position on theinterior surface of the cavity.

FIG. 6 details use of a vacuum/magnetic cup with canula, including avacuum/magnetic elongated cup 56. The cup height 561 is about 1 cm.

A vacuum canula 53 is used to attach to the abdominal cavity 12—insidethe human body.

In another preferred embodiment, the virtual port device comprises asuction cup with an elastic membrane, which is coated on its tissuefacing surface with a pressure sensitive adhesive gel that permit betterattachment to the cavity wall, or to various tissues within a cavity.The pressure sensitive adhesion gel and elastic membrane may bepermeable to gas and/or liquids and an absorbent substance inside thesuction cup may be provided too.

The spherical or elongated device is introduced into a cavity such asthe abdominal cavity through a small orifice preferentially of 5 or 10mm diameter under direct vision. The device is provided with aprotuberant means, preferentially situated opposite to the attachmentside to the cavity wall, that permit grasping and handling by theintroducer. The introducer is represented by a slender instrumentprovided with a grasping end that can grasp the device from theprotuberant means and bring the virtual port device and position it atthe desired location on the interior surface of the working cavity, oronto tissue within the working cavity.

Alternatively, in case of an inflation chamber, or a vacuum deviceprovided with a permanently attached canula, this canula may serve as anintroducer means. The same introducer device may serve for changing theposition of the device on the inner side of the working cavity wall, oron the tissue within this cavity. In order to do this the introducermeans is introduced into the cavity through an existing opening and thevirtual port device is grasped under vision by the protuberant means,the attachment means to the cavity wall, or inner tissues such asmagnetic, vacuum, adhesive are released completely, or partially, theintroducer means will move the virtual port device and the attachmentmeans will be reactivated at this location and the introducer means willbe detached from the virtual port device. This maneuver may be repeatedas many times as is necessary.

In case the device is provided with a one way valve, or valves and withconnection means to these valves, the device may be introduced in theworking cavity, and manipulated as above mentioned in the previousparagraph, through the small orifice in the cavity wall by the tube orcanula that are affixed to this connection means and positioned to theproper place under vision using this tube or canula means. The connectorused for attaching the canula may be of a mechanical articulation typefor example a bayonet connection, or by using an inflatable balloon atthe end of the canula to firmly attach it to a proper cavity on theanchoring device.

In another preferred embodiment the virtual port anchoring device isattached to the inner side of the cavity by small barbs that penetratethe tissue when the device is pressed by the introducer against it. Thisentire device, a segment holding the barbs, or only the barbs may bemanufactured of biodegradable material. This anchoring device might beshaped as a solid spherical or ellipsoidal device that can be introducedthrough a small diameter orifice using a detachable introducer, or itcan be provided with an inflatable chamber that can be inflated withliquid or gas to a larger volume having a larger attachment surface tothe inner surface of the cavity.

In this case, the introducer may be a canula permitting inflation of thechamber through a one-way valve, and being detachable attached to it.The device is released from its position by using traction with theintroducer and reattached to another position by a similar maneuver. Incase of using a biodegradable device or a part of the device beingbiodegradable, this segment can be left attached to the original placeand the second component can be removed through an orifice in the cavitywall. In case of an inflation canula serving as introducer, this canulais reattached to the one-way valve of the device through a connector,and the device is detached from its location by using traction, andreattached to the new location, or removed from the cavity. Theconnector used for attaching the canula may be of a mechanicalarticulation type for example a bayonet connection, or by using aninflatable balloon at the end of the canula to firmly attach it to aproper cavity on the anchoring device.

Alternatively, the device may be attached to the undersurface of thecavity by a clip means, that is, advanced over a segment of tissue fromthe undersurface of the abdominal wall that is grasped or sucked by aspecially designed means. Such a device may be designed as an inversetweezers that has central passage for passing the grasping or suctionmeans and a means for manipulating it and approximating it to theundersurface of the cavity wall.

In another embodiment the anchoring device is attached to the undersideof the cavity using a wire shaped as a loop that penetrates the entirecavity wall. This anchoring device might be shaped as a solid sphericalor ellipsoidal device that can be introduced through a small diameterorifice using a detachable introducer, or it can be provided with aninflatable chamber that can be inflated with liquid or gas to a largervolume having a larger attachment surface to the inner surface of thecavity.

In this case, the introducer may be a canula permitting inflation of thechamber through a one-way valve, and being detachable attached to it.

Preferably, the attachment device is shaped as an umbrella that opens onthe undersurface of the cavity and is held in this position by andprevented from flipping back on itself by some reinforcing means. Theincreased contact surface of the anchoring device to the inner surfaceof the cavity may permit better fixation of the anchoring device to thecavity wall. The wire is provided at its end with a loop or otherattachment means to the anchoring device, and the anchoring device isprovided with a hook means for engaging the loop means of the wire. Thewire may be introduced directly through the cavity wall, or through aspecial needle used to pierce the cavity wall.

The wire is introduced to the proper place though the cavity wall bytransillumination guidance or by other imaging means. When moving theanchoring device to another position the device is detached from thewire and this wire, or another wire is introduced to the new positionand the anchoring device is attached to the attachment wire using theintroducer, by the same maneuver mentioned previously. These mechanicalattachment means of the anchoring device are somewhat more invasive thanthe previously mentioned means by are much less invasive than creatingorifices of 5 to 10 mm diameter in the cavity wall necessary forintroduction of standard retractors and other working elements.

Gas insufflation has its potential drawbacks such as generation ofpositive pressure, which in case of abdominal laparoscopy can bedetrimental in obese patients, patients with chronic respiratory and/orcardiac diseases. Additionally gas insufflation, necessitates aninsufflator device, can result in rapid loss of the working cavity whenthere is a gas leak, or when the gas exhaust results in inadequate viewof the surgical site.

The embodiments in which the anchoring means are held in place by somedevice on the outer surface of the cavity, such as by magneticattraction or by wires piercing the entire thickness of the cavity, canserve also for gasless (atmospheric pressure) endoscopy or laparoscopy.In this case, an initial port is performed using positive pressurelaparoscopy, then the attachment means are attached to the undersurfaceof the cavity for endoscopic retraction and for retraction of the bodywall, thus serving a dual role.

The devices on the outer surface of the cavity can be attached to aframe or to rods fixed to the operating table, to the operating roomfloor or ceiling and serve for lifting the cavity wall, permitting toperform the intervention without the necessity to insufflate the cavitywith gas.

Thus, the undesired effects of pressurizing the abdominal cavity duringa surgical intervention can be avoided.

FIG. 7 details a virtual port including a wire 571 with a reversedumbrella-shaped device 572 with a hook 573, before being attached intoplace to abdominal wall 11.

FIG. 8 details a virtual port, use of a wire with a reversedumbrella-shaped device attached into place.

FIG. 10 details a virtual port self retaining clips, tweezers-type,including a vacuum tube 61 for pulling the abdominal wall 11 tissue, aholding tube 62 for pushing the clips means, clips means 63 in place,and outer tube 64 for closing and opening the clips means 63.

FIG. 11 details the structure of a virtual port self retaining clips.

The clips means is made of elastic wire, for example, has a pair ofholding tips 631 and a wider base 632, connected through crossed arms633.

By applying force 634 inwards opens the tips 631, such as when the base632 is in a tube 64 when base 632 is released, then tips 631 close tohold tissue therebetween. A vacuum tube 61 may pass through the base632.

FIG. 12 details another embodiment of a virtual port self retainingclips, wherein the clips means is made of elastic ribbon example, has apair of holding tips 641 and a base 642, such as the tips 641 arenormally close to each other or in contact with each other by applyingforce 644 inwards on arms 645 will open the tips 641, to attach totissue.

There may also be a hole 646 for the vacuum tube 61.

FIG. 13 details a virtual port self retaining clips with a vacuumcup/grasper means 51 using the aforementioned three tubes structure.

FIG. 14 details a net/mesh for holding internal organs or pushing themaside. A net 65 has a plurality of holding points 652, each can beattached to an anchoring point created using either of the structuresdetailed above FIG. 15 details means for holding an internal organ byattaching it to a virtual anchor point 572, and connected through a wire24 to vacuum cup/grasper means 51 to attach to an internal organ.

Several organs can thus be secured to one anchor point, using severalwires 24, each with its grasping means 25 attached thereto.

In laparoscopic procedures, the attachment means may be fixed to theundersurface of the cavity and moved from one position to another, usingendoscopic instruments such as graspers under the direct vision theendoscope.

FIG. 16 details an inflatable balloon 66 with affixed virtual portdevices, being secured to two cavity or abdominal walls 11, 14.

The inflatable balloon 66 may include holding means 67, 68 to attach toabove walls—such as asperities on the extremities of the balloon 66,vacuum cups or any of the above means.

Furthermore, the balloon 66 may include inflating means 69, such as atube to inflate with a fluid. When inflated, the balloon 66 may be usedas a support means inside the body, or a means to move internal organstherein.

FIG. 17 details vacuum cup with a two-state valve in its closed state.

The vacuum cup 51 has a flexible valve tube 591 which is closed, and arigid valve tube 592 partially inserted therein.

FIG. 18 details vacuum cup with a two-state valve in its Open state.

Method of operation: the valve is normally in its closed state, due toelastic action of rubber tube 591.

To create vacuum, connect to vacuum pump and press rigid tube 592 intocup, through rubber tube 591. Air is eliminated and vacuum created.

The elastic surface of cup 51 is drawn in by the vacuum, keeping thevalve Open.

When vacuum inside cup 51 disappears, for example when the side of thecup 51 is lifted up, then there is no longer a vacuum to hold the valveOpen, and it automatically reverts to its closed state. In this state,the cup 51 is disconnected from the vacuum pump 7. Vacuum is stillsupplied to the other cups in the system, cups which are connected tothe same pump 7 through the common vacuum tube 52. Vacuum will notescape through the disabled cup, since the valve there has reverted tothe closed state.

FIG. 19 illustrates a plurality of vacuum cups 51 connected to a commonvacuum pump 7.

The vacuum cups 51 may be attached to cavity or abdominal walls 11, 14and, through vacuum tubes 52, to a vacuum pump 7.

A wire 24 can be pulled to exert a force as desired by the surgeon andheld in place with ratchet mechanism 23.

FIG. 20 details vacuum cup with a two-state, toggle-switch activatedvalve in the Vacuum Activate state.

This is another solution to the problem of independent control overseveral cups which are connected to a common vacuum pump.

Problem—when disconnected from body, to keep vacuum in tubes, as sametube is connected to several cups.

One cup can be disconnected, whilst the rest of them still operate undervacuum.

Method of use:

-   -   1. connect cup to vacuum pump using a tube.    -   2. open valve by pushing the Open pushbutton on the device.    -   3. to disconnect, press Close pushbutton then lift side lip of        cup to allow air to enter.    -   4. If left closed—the cup can be disconnected from pump but        retains its vacuum.

The vacuum cup 51 is attached to cavity or abdominal wall 11 and,through vacuum tube 52, to a vacuum pump 7.

The valve 81 is illustrated with Vacuum Activate button 82 in depressedstate. The air passage 84 is then open from cup 51 to pump 7, whereasthe Close Cup button 83 is inactive.

FIG. 21 details vacuum cup with a two-state valve in the Vacuum Preservestate. In this state, the Close Cup button 83 is in depressed state, andthe Vacuum Activate button 82 is inactive. In this state, the airpassage 84 is blocked, preventing air flow between cup 51 and pump 7through the vacuum tube 52.

In this state, the valve 81 is closed, and preserves the vacuum in cup51 even if the pump 7 is deactivated or disconnected.

If cup 51 is disconnected, and there is no more vacuum therein, thiswill not affect the performance of pump 7, which may supply vacuum toother cups which may be connected to the same tube 52.

Air will not penetrate the tube 52, since the valve 81 is closed.

FIG. 22 details vacuum cup with a three-state, switch-activated valve inthe Vacuum Activate state.

The three states include:

-   -   1. Vacuum Activate, to connect cup to vacuum pump to generate        vacuum in the pump to attach it to an internal body organ;    -   2. Vacuum Preserve, valve closed and vacuum preserved in the        cup;    -   3. Vacuum Release, opening a path for air or fluid to enter the        cup from the surroundings.

Problem—when disconnected from body, how to keep vacuum in tubes, assame tube is connected to several cups. One cup can be disconnected,whilst the rest of them still operate under vacuum.

Also—how to release the cup without applying force thereon.

Solution: a control lever 85 is rotated into a position so as to orientthe air passage 84 towards the vacuum tube 52, connecting it to the pump7.

In this state, the valve is open, allowing the pump 7 to create vacuumin the cup 51.

FIG. 23 details vacuum cup with a three-state switch activated valve inthe Vacuum Preserve state.

The control lever 85 is rotated into a position so as to orient the airpassage 84 towards a wall or block in the device.

The valve 81 is blocked, preventing air flow between cup 51 and vacuumpump or the ambient.

In this state, the valve 81 is closed, and preserves the vacuum in cup51 even if the pump 7 is deactivated or disconnected.

The outlet 86 to the vacuum pump is blocked, so as not to disturb thevacuum to other cups, even if there is no more vacuum in cup 51.

FIG. 24 details vacuum cup with a three-state switch activated valve inthe Vacuum Release state.

The control lever 85 is rotated into a position so as to orient the airpassage 84 towards an outlet 87 which is open to the ambient air, or airin the abdominal cavity.

Air from the ambient enters the cup 51 and cancels the vacuum therein.

The outlet 86 to the vacuum pump remains blocked, so as not to disturbthe vacuum to other cups, even if there is no more vacuum in cup 51.

FIG. 25 illustrates an electronically-controlled vacuum pump 7.

Problem—to generate vacuum for a predefined time period, then to stopit, so as not to damage internal body organs.

Solution: A timer 71, activates pump for a predefined time interval whenreceiving a trigger input 711, for example pushing a button there.

The optional time interval setting input 712 may be used to set thatinterval.

When the time interval is about to end, or a predefined time beforethat, an indicator 713 indicates to the surgeon that the vacuum is aboutto end. The indicator 713 may include a light or a buzzer or acombination thereof, for example.

A pump controller 72 controls the vacuum level as desired, optionallyaccording to a vacuum control input 721 settings. The vacuum pump 73itself generates the desired vacuum, for the time period as desired, atoutlet 731. A battery 74 generates the electrical power for the device.

FIG. 26 illustrates a cup-moving means with partial vacuum reduction,using a metallic ball 91 with an obstruction 92, which is rotated bymeans of coils 93, for generating a rotating magnetic field, to rotatethe ball 91.

As the ball 91 is rotated according to external commands from thesurgeon, the cup 51 is pulled sideways in the desired direction.

A partial reduction in the vacuum level may facilitate the movement ofthe cup 51, which remains attached to the abdominal wall 11.

FIG. 27 illustrates another cup-moving means with partial vacuumreduction, including a metallic ball 91 with asperities/teeth 94 on itsouter surface, which allows to move the cup 51 as the ball is rotated onthe tissue 11 the cup 51 is attached to.

Various embodiments of the present invention may be implemented. Forexample, in FIGS. 17 and 18, the valve may further include means forreleasing the vacuum in the cup 51 whenever the surgeon finds thisnecessary, using laparoscopic tools.

Laparoscopic tools allow pushing and pinching various means in the cup51.

Accordingly, release means are installed on the cup 51 or the tube 592or the tube 52, allowing to open the cup to the ambient. The releasemeans may be implemented for example using a flexible part 593 normallycovering an opening there.

In the normal or rest state, there is overlap between two parts, suchthat ambient air or fluid cannot penetrate into the cup 51.

When pressed and/or deformed by the surgeon, part 593 allows air orambient fluid to enter the cup 51, to cancel the vacuum within the cup.This releases the cup 51 and detaches it from the surface it has beenattached to by means of the vacuum therein.

In FIGS. 17 and 18, the valve may have a structure including means forperforming as follows:

-   -   a. Vacuum is formed in the cup 51 by air suction through tube        592;    -   b. whilst there is vacuum in the cup 51, the valve holds itself        open by a deformation in its outer shape, thus keeping the rigid        tube 592 within the flexible tube 591;    -   c. when there is no longer vacuum within the cup 51, the valve        automatically shuts itself, for example by the cup returning to        its normal rest shape and/or releasing the rigid tube 592 out of        the flexible tube 591;    -   d. vacuum release means, implemented for example using a        flexible part 593 which when pressed, allows air or ambient        fluid to enter the cup 51, to cancel the vacuum within the cup.        This releases the cup 51 and detaches it from the surface it has        been attached to by means of the vacuum therein.

The above description details the use of one cup as a virtual port, orsupport for holding internal organs during an operation. When thesurgeon desires to apply a larger force, or to hold larger organs, it ispossible to use several cups. This also helps to share the force amongseveral locations within the body, or over a larger area.

In this embodiment, several cups are attached to an internal wall of thebody, for example the abdominal cavity. Each cup may be attached usingvacuum and/or magnetic force. The cups may be connected together usingwires or a solid plate. The plate may be either rigid or flexible, asthe need be. The cups thus connected are then used to support the weightas desired or to apply the required force.

FIG. 28 illustrates the structure of a reinforced vacuum cup. The vacuumcup 51 may be attached to a vacuum tube 52. The cup 51 may includeinternal rigid or semi-rigid ribs 512, pushing its surface to open upinto a cup shape. The internal spring 513 may be connected to the ribs512 for added strength, and to make it a foldable structure—thus the cup51 has a superior mechanical strength and a tendency to open to itscup-like shape, and also can be folded down to a narrow shape to beinserted easily into the body, through a sleeve in the abdominal wall,for example.

The above ribs and spring ensure that the cup 51 will open up when outof the sleeve, inside the patient's body.

Thus is achieved the elastic or non-elastic cup 51, having a novelstructure, which includes an internal spring 513 to open it.

The cup 51 may have stiffening ribs 512, to keep it from collapsing andimprove the rigidity of the cup.

The abovedetailed cup may be inserted into a cannula of 9 mm or 20 mm(millimeters) diameter.

It may be used with a retractor or surgery-related working elements.

Mechanical attachment means 519 may be used to hold the cup by thesurgeon, in order to bring the cup to a desired location or to remove ittherefrom.

Attachment means 518 may be used to attach to other surgical devicesusing a hook/loop connection for example. Thus one part can snap on toanother for a fast, strong and reliable attachment of parts and/orinstruments during surgery.

FIG. 29 illustrates the use of virtual ports A first vacuum cup 51 isattached to the cavity or abdominal wall 11, and to a vacuum/suctiontube 52.

A second vacuum cup 51 attached to an internal organ 14, with mechanicalcoupling 514, such as a rigid or semi-rigid strip, between the abovecups.

A TV camera 33 may also be installed, connected to a TV camera 331cable.

FIGS. 30A, 30B and 30C detail the structure and operation of anotherembodiment of a virtual port, used for working instruments.

In this embodiment, the virtual port instrument may serve for attachingvarious instruments such as scissors, dissectors, clippers, staplers,needle holders etc. These working instruments may be flexible, orarticulated and are introduced through an opening in the cavity wall andtheir shaft is attached to the virtual port device, which acts like ahinge for remote manipulation of these instruments.

The anchoring device may serve also for anchoring and as a hinge forflexible, or articulated working instruments, such as graspers,dissector, clippers, cutting and hemostatic instruments, needle holders,etc. The shaft of these devices is attached to the device before itsintroduction within the working cavity.

Alternatively, a special sheath or sleeve is attached to the virtualport device, which permits the introduction of the working elementsthrough this sheath and also permits interchange of such instrumentsafter removably affixing the virtual port device to the inner side ofthe cavity wall or on the tissue within the working cavity.

The device includes means for attaching various retractors or surgicalworking instruments such as scissors, dissectors, clippers, staplers,needle holders, etc.

The new structure of the device includes, inter alia, its antenna-likeshape, a telescopic element with an internal spring. It attaches to loopusing hook connected to it, with a rod being inserted into telescopingelement.

Through the sleeve, the surgeon may insert working element such ascatheter.

The element is attached to the lower end of the telescopic element.

FIG. 30A details the insertion of a hollow needle through the cavity orabdominal wall 11. It uses just a small hole in the wall 11, so as notto leave a visible scar.

This procedure and device sets a virtual port in that location, whichcan subsequently be used to secure various surgical instruments in thatplace.

A loop is inserted through the needle into the abdominal cavity anarrow, rigid rod is inserted as well—for example a steel rod of about 2mm thickness.

FIG. 30B—a surgical device is inserted into the body through a largerhole, for example through the navel using a sleeve. It has a hook and acup. It is brought to the virtual port.

Preferably, it has a hollow structure, with a central longitudinal hole.

The part 275 is preferably a telescoping element, which can be expandedagainst an internal spring therein.

FIG. 30C—the hook is attached to the loop. The loop is pulled out fromthe outside, thus attaching the device to the wall 11 and securing itinto place.

The narrow, rigid rod 28 is inserted into the longitudinal hole ofdevice 275.

The total result is that the instrument 275 is now secured to thelocation of the virtual port, and can be manipulated by the surgeon fromthe outside, using for example a steel rod 28 of about 2 mm thickness.

The device 275 has a hollow structure, with a central longitudinal hole.

Preferably the hole is not circular but asymmetrical, rectangular forexample, with rod 28 having a corresponding shape.

This will prevent free rotation of the instrument 275 with respect tothe manipulating rod 28. This allows the surgeon to better control theinstrument, to manipulate it in three dimensions, including rotationabout its axis.

FIG. 31 details a rod 28 which may include, at its end, means 282 forattaching it to the instrument 275, or surgical working element means.The total thickness may be about 4 mm. At its other end, the rod 28 mayinclude a handle 284 for the surgeon, and/or means 285 for connecting itto a central motorized station 117.

This connection allows the movements of rod 28, and the surgical toolconnected thereto, to be controlled by small motors rather thanmanually.

Preferably the rod 28 is thinner throughout its length except for itsends, for example at location 281 its thickness being about 2 mm.

The novel innovative concept herein discloses allows for variousembodiments in a modular structure. It covers various systems, from thesimple to the complex.

A simple system includes retractor for manual surgery, using a smallopening in the abdominal wall. A more complex system uses motors, ismore comfortable to the surgeon and uses 3D display, with several TVcameras.

The cameras may be RF and/or IR. The precise, known location of camerasallows to compute distances inside the body and the precise location ofitems in the surgery arena.

The system uses small diameter holes in the abdominal wall for thevirtual ports locations 114, of 1-2 mm diameter each, and one largerhole 113 for inserting instruments, about 5-10 mm diameter, in thepatient's navel for example.

The hole in the navel causes less pain and is practically invisible ifin the range of about 5-10 mm in diameter.

This allows easy insertion, replacement of surgical instruments througha sleeve 116 in the larger diameter hole 113.

FIG. 32 details a motorized/manual surgery support system.

This is a simple, low cost embodiment of the inventions, offeringvarious benefits.

Surgical tools may be inserted through an opening 113 and a sleeve 116.

One end of the sleeve 116 is secured to the opening 113 in the abdominalwall 11, and its other end is secured to the virtual port at location114. Thus, a plurality of tools can be inserted into the patient's bodyand brought to the precise surgery site at location 114.

The surgery site may be changed at short notice as the need be, bycreating a second, third, etc. site 114 as detailed above.

The surgical tool 121 is manipulated by the rod 28 in two or threedimensions. Additionally, the end of the tool and its other options maybe controlled by the central motorized station 117.

Station 117 may include one or more small motors, preferably DCservomotors. Mechanical motion is transferred through flexible means1175 and coupler 1174 to the surgical tool 121.

The control site 117 may include a control joystick 1178, to control itin three dimensions (3D), 4D or 6D. The unit 117 allows all the surgicalmovements as required.

It is a small device, about 5-7 cm size, including small motors,preferably electrical servomotors. The movement of the motors iscontrolled from one place. The device may include other force generatingmeans as known in the art, including but not limited to solenoids,hydraulic and/or pneumatic means.

This structure allows complete control over the surgery element orelements, from one central control site or desk 117, preferably using ajoystick.

The movement transfer means 1175 may allow movement in three dimensions,transferring movement from small motors external to the body. In thisexample, the motor movement is converted into a movement of forceps 119internal to the body.

The rotation of surgical device 119 is also possible, then 4 degrees offreedom are achieved 4D.

Benefit—just a small hole, for example about 1-2 mm diameter at location114, versus a several centimeters diameter hole in prior art.

Preferably a hole in the navel 113—is practically invisible after thesurgery, does not leave an inconvenient visible scar.

The flexible instrument 121 may be a catheter, at its end a scissors.

Benefit—surgeon can use scissors or another working element, byattaching it to the instrument and manipulating it in 4D, using anelement or stick 28.

The main hole 113, of about 5-10 mm diameter, is preferably performed inthe navel—it does not leave a scar.

Through this hole, a sleeve 116 is inserted.

The sleeve connects to a loop and rod near the small hole 114. The smallhole 114 does not leave a scar.

The surgeon can use visual means inserted through the navel, hole 113.

The instrument is connected using the above detailed system of needle,rod and hook.

During the next stage, the sleeve 116 may be taken out. Preferably thesleeve is left in place, its one end secured to the virtual port atlocation 114, the other end remains outside the body at hole 113. Thisallows easier replacement of surgical tools and their placement at theprecise desired location, near the hole 114 in this example, using thesleeve 116 as a guide.

The surgical tools may use various working elements.

The sleeve 116 is preferably flexible, thus it does not have a specificshape. Working elements have a thickness about 3-4 mm at their end, butare manipulated by sticks which are thinner, about 2 mm. By insertingthe instruments one after the other, it is possible to insert severalinstruments through a relatively thin sleeve and hole in the abdomen,for example two instruments of 3.5-4 mm thickness each can be insertedthrough a 6 mm sleeve and hole.

Moreover, the surgical instruments can be activated, either manually orusing motor means.

FIG. 33 details a fully motorized surgery support system. In thisembodiment, the central motorized station 117 is secured in place abovethe virtual port 114 using means 1176.

The element or stick 28, rather than being manually handled, isconnected to a motor or a plurality of motors, in the station 117. Thisallows the surgeon easier control over the surgical tools. The tool isheld in place while the surgeon is otherwise occupied, freeing his/herhands for additional tasks. Precise movement control may be achievedusing servo-control techniques as known in the art.

Activation of stick 28—by pull wires or pneumatic or hydraulic means andmay have scissors at its end.

The end of stick 28 may be deflected using various means such as pullwires or hydraulic means. This adds another two dimensions 2D, achievedby that deflection.

Then, in total, the system can implement a 6D movement, six degrees offreedom for the working element.

The control site at station 117 may include a control joystick 1178,which controls it in 4D or 6D, and according to the specificimplementation.

Thus, a single control site allows the surgeon complete control over thesurgery, from only one place.

During a surgical intervention, surgery may be needed in several placesinside the body. Accordingly, another small hole 114 may be made and avirtual port created there, and the central motorized station 117 can bemoved to that location and secured in place there.

FIG. 34 details a fully motorized surgery support system using a remotecontrol unit.

The remote control unit 118 is connected to the central motorizedstation 117 and has full control over its operation.

It may include a joystick 1183 and/or other control means, and displaymeans 1184.

Unit 118 may be connected to station 117 through electrical cables tobring the desired control, information and/or electrical power asdictated by engineering considerations.

The movement of the motors in device 117 may thus be controlled from aremote place 118, preferably a desk site that needs not be close to thepatient.

Thus, surgery can be performed under remote control.

A monitor or display means for the surgeon can connect to several TVcameras inside the abdomen, to achieve 3D viewing of the surgery site.Preferably use three cameras. Can use two or more than three cameras.

The surgeon at the control site 118 has complete control over theoperation, can see a bi-dimensional or a tri-dimensional image of thesurgery site.

The system can use special screens as known in the art, and/or specialglasses for 3D viewing or virtual reality imaging.

The end of the sleeve 116 is secured in place, thus allows multipleinsertions/removals/replacements of instruments therethrough.

The surgeon keeps track of the surgery location throughout the surgicalprocedure, which may include a plurality of instruments, using theprecise locations of the virtual ports 114.

Benefit of joystick, automatic system—it is comfortable to surgeon,improves surgical performance, and may reduce the chances of humanerrors.

The new system takes just a small place over the patient.

Prior art systems include the “Da Vinci System” manufactured byIntuitive Motion.

A prior art system uses a large robot system, weighting about 200 kg,positioned over the patient. Such a system, should it accidentally falldown on to the patient, may crush the patient. Moreover, it may obscurethe surgeon's view of the patient, hindering the desirable medicalsurveillance of the patient.

The new system is small, thus it will not obscure the surgeon's view ofthe patient. The system is lightweight, so it will not present a dangerto the patient.

Prior art systems are robot-like, having two arms with fixed instrumentsattached thereto. It may be difficult to replace the workinginstruments.

The new system, however, allows easy replacement of working elements.

Prior art systems use a plurality of large abdominal holes, about 8-10mm diameter each. The new system uses just one hole of 8-10 mm diameter,with the rest being narrow holes, about 1-2 mm diameter.

The new system uses a plurality of small motors to achieve movement inseveral dimensions, for example three, four or six dimensions.

This is a low cost, lightweight structure.

Prior art robot arms with transmission means, gears, pull wires—acomplex, very expensive structure and to supply electrical power to thecamera, working tubes for washing the surgery area for example, suctiontubes.

In a preferred embodiment, washing tubes of about 1 mm diameter and/orTeflon suction tubes of about 0.9 mm may be inserted through a hole ofabout 5 mm diameter in the abdomen.

Method of Surgery Using a Plurality of Virtual Ports

The surgeon may use one hole 113 in the abdomen for inserting surgicalinstruments, and a plurality of anchoring sites 114 having a minimaldiameter, for holding and manipulating these instruments.

The central motorized station 117 is secured in place above the virtualport 114 which is instantly used for surgery, using means 1176.

The station 117 may thus be secured to a fixed location 1176 such as thepatient's bed or other fixture. Alternately, device 117 is placed on thepatient's body directly.

The surgical elements are connected to the station 117 and aresubsequently controlled from that station.

The surgeon may operate using the controls at station 117, or mayconnect that station to a remote control center which then controls thesurgical tools.

FIG. 35 details a surgery support system for concurrent operation at twosites within the patient's body.

Concurrent surgery at two or more places is possible using the presentinvention.

In this embodiment, two sleeves 116, 1162 are inserted through the hole113 in the abdominal wall. The former sleeve is connected to a surgicaltool at the virtual port at location 114, whereas the latter sleeve—tothe tool at location 1142. The surgeon can use the rods 28 and 286,correspondingly, at these two locations, for the actual surgery.

Preferably, a ferrite material is used in the device inside thepatient's body, to create a virtual port using magnetic fields.

An internal surgery method is disclosed, using the grasping meansdisclosed above.

Method for Securing Internal Organs

The method includes:

-   -   1. Attaching a first part to a first internal body surface    -   2. Attaching a second part to a second internal body surface    -   3. Applying a force between the first part and the second part,        during internal surgery.    -   4. Releasing the force at the end of the surgery 5. Removing the        first and second parts from the patient's body.        End of method.

The invention discloses a method for attaching internal organs to eachother or of an organ to the underside of a body cavity.

For example, internal organs may be attached to the underside of theabdominal wall.

The method includes attaching to an organ using various means, such as asheet, a pin, or a net. Various grasping means may be used, for examplesuction means, an adhesive, clips, a needle with loop/hook means, barbsor magnetic means. The grasping means may include means for re-locatingthe virtual port as required by the surgeon. Re-locating may beperformed either invasively or non-invasively.

After attaching such means to two locations, it is possible to apply acontrolled force between the secured ends of the device, to achieveretraction as required in surgery.

The method may be used to hold an organ at a desired location, or toattach it to another organ or to a body internal wall. The graspingmeans may include a strip coated with an adhesive material.

The adhesive-coated surface adheres easily to the surface of a bodyorgan or the wall of a body cavity. In a preferred embodiment, the stripis only coated at specific locations, to prevent its undesired adherenceto other organs.

The strip may be of a bio-degradable material, which disintegrates inabout one to two months, for example. This solves the problem of asecond surgery to remove the strips—they disappear by themselves.

The strips or thread of this device may be of non-absorbable material incase of blood vessels or of absorbable biodegradable material such aspolylactic polygalactin acid (PLGA) in other cases and in case ofretraction, or materials such as Vycril™. The adhesive may be one of thecyanoacrylates, fibrin glues or other biodegradable adhesive polymers.

The strip may be smooth or may be provided with multiple sharp barbsmade of the same material in order to improve grasping and holding oftissues.

An apparatus for applying the above strip may include means for storingthe strip, and means for cutting the strip after attaching it to a bodyorgan surface as desired. In one embodiment, the strip is already coatedwith an adhesive and ready to use. In another embodiment, the strip isseparate from the glue. The applying instrument may include means forapplying the adhesive, such as a glue to be delivered at the desiredlocation—on the organ's surface or at the strip's end—as desired. Theglue may be delivered through a Teflon tube, for example, so the gluewill not attach to it.

Various suction means may be used. An underpressure may be created witha vacuum pump or a Venturi device.

Magnetic means may include a ferrite powder for the part inside thebody.

Method for Tissue Approximation in Internal Organs

The device with strip and adhesive can be also used for tissueapproximation such as closing opening in hollow organs such as bowels,urinary bladder, blood vessels, etc. The strip may include both anadhesive and sharp barbs, for more reliable attachment to the bodytissue.

The method includes:

-   -   1. Attaching a first part to a first part of an internal organ        or to part of the rim of an opening thereon    -   2. Attaching a second part to a second part of an internal organ        or to another part of the rim of an opening thereon    -   3. Applying a force between the first part and the second part,        so as to close an opening in the organ, during internal surgery.    -   4. Releasing the force at the end of the surgery (optional). In        another embodiment, a bio-degradable material is used, which        releases the force after a prolonged time period, measured in        weeks or months.    -   5. Removing the first and second parts from the patient's body        (optional).        In another embodiment, a bio-degradable material is used.        End of method.

The invention is not limited to a specific embodiment such as that usinga strip. Rather, various means may be used for exerting a force betweenorgans and/or cavity walls, including but not limited to a string, rope,netting, rod, etc.

It will be recognized that the foregoing is but one example of anapparatus and method within the scope of the present invention and thatvarious modifications will occur to those skilled in the art uponreading the disclosure set forth hereinbefore.

1. A surgery-assisting retraction device (SARD) useful in minimally invasive surgeries for retraction of an organ within the abdominal cavity of the human body, said SARD comprising: a. at least one umbrella-shaped device comprising at least one hook, said hook adapted to be reversibly attached to an anchoring point on the internal abdominal wall; and, b. at least one wire adapted to pass through an opening within said abdominal wall at the location of said anchoring point; said at least one wire is adapted to attach said umbrella-shaped device to said anchoring point; and, c. at least one second anchoring means being interconnected to said at least one umbrella-shaped device via coupling means; said second anchoring means adapted to be reversibly attached to said organ within said abdominal cavity, such that when said SARD is activated, the same retracts said organ with respect to said anchoring point.
 2. The SARD according to claim 1, wherein said SARD is moveable in any predetermined direction from one anchoring point to another anchoring point on said abdominal wall without creating any openings in said location of said anchoring points.
 3. The SARD according to claim 1, wherein said at least one second anchoring means comprises a plurality of attachment means selected from the group consisting of: vacuum cups, magnetic means, mechanical means, adhesive means or any combination thereof; further wherein said plurality of said attachment means are adapted to homogeneously distribute mechanical load between said plurality of said attachment means.
 4. The SARD according to claim 1, additionally comprising controlling means releasably attached to said SARD, adapted to (i) introduce said SARD into said abdominal cavity; (ii) to extract said SARD from said abdominal cavity; and, (iii) to relocate said SARD within said abdominal cavity; said controlling means being at least partially operated by from outside said body.
 5. The SARD according to claim 1, wherein SARD is activated by an introducer.
 6. The SARD according to claim 1, wherein SARD is introduced and extracted into and out of said abdominal cavity by an introducer.
 7. The SARD according to claim 1, wherein SARD is manipulated and relocated within said abdominal cavity by an introducer.
 8. The SARD according to claim 1, wherein said coupling means is selected from the group consisting of: a string, a tissue retractor means, a rod, or any combination thereof. 